洛杉矶[4]Armstrong D, Marshall JK, Chiba N, et al; Canadian Association of Gastroenterology GERD Consensus Group. Canadian Consensus Conference on the management of gastroesophageal reflux disease in adults - update 2004. Can J Gastroenterol. 2005 Jan;19(1):15-35.http://www.ncbi.nlm.nih.gov/pubmed/15685294?tool=bestpractice.com[41]Lundell LR, Dent J, Bennett JR, et al. Endoscopic assessment of oesophagitis: clinical and functional correlates and further validation of Los Angeles classification. Gut. 1999 Aug;45(2):172-80.http://www.ncbi.nlm.nih.gov/pubmed/10403727?tool=bestpractice.com[42]Armstrong D, Bennett JR, Blum AL, et al. The endoscopic assessment of esophagitis: a progress report on observer agreement. Gastroenterology. 1996Jul;111(1):85-92.http://www.ncbi.nlm.nih.gov/pubmed/8698230?tool=bestpractice.com
食管炎的洛杉矶分级是根据内镜下提示食管炎的食管远端黏膜破损情况将患者分为 A~D 四级: